First head over here......
http://support.wdc.com/product/download.asp?groupid=609&sid=113
...and get....
wdidle3_1_05.zip
Extract it to get this......
wdidle3.exe
Description
This firmware modifies the behavior of the drive to wait longer before
positioning the heads in their park position and turning off
unnecessary electronics. This utility is designed to upgrade the
firmware of the following hard drives: WD1000FYPS-01ZKB0, WD7500AYPS-
01ZKB0, WD7501AYPS-01ZKB0.
CAUTION: Do not attempt to run this software on any hard drives other
than what is listed above. Please make sure that the computer system is
not turned off during the firmware upgrade. Doing so may damage the
hard drive beyond repair and your data may be lost.
- - - - - - - - - -
Info I got was off a user review from
newegg.com on a 3TB WD Green
drive (internal), and it reads;
"Cons: The only problem is that you have to change the idle timer using
the wdidle3.exe program. Otherwise the heads will park every 8 seconds
if there's no use. It unnecessarily increases the Load Cycle Count.
Google wdidle3 and you'll figure it out.
Something that I noticed when changing the timer, if you completely
disable it, bad things happen. At least for me, my drive started acting
like the timer was set to .1 seconds or something. The Load Cycle Count
was shooting up every few seconds. So I went back in and set it to 300
seconds (the max). That solved the problem."
I just today got such a drive and need to do this myself soon.
Hope this is what you're looking for, and that it helps you.
Jim L.